Average Weather in Mérida Venezuela

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2. Venezuela
3. Mérida
4. Municipio Libertador
5. Mérida

In Mérida, the wet season is warm, the dry season is comfortable, and it is overcast year round. Over the course of the year, the temperature typically varies from 57°F to 77°F and is rarely below 54°F or above 82°F.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

In Mérida, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Mérida begins around December 12 and lasts for 2.9 months, ending around March 8. On January 14, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 29% of the time, and overcast or mostly cloudy 71% of the time.

The cloudier part of the year begins around March 8 and lasts for 9.1 months, ending around December 12. On April 28, the cloudiest day of the year, the sky is overcast or mostly cloudy 92% of the time, and clear, mostly clear, or partly cloudy 8% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Mérida varies very significantly throughout the year.

The wetter season lasts 7.9 months, from April 2 to November 30, with a greater than 39% chance of a given day being a wet day. The chance of a wet day peaks at 69% on August 12.

The drier season lasts 4.1 months, from November 30 to April 2. The smallest chance of a wet day is 9% on January 17.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 69% on August 12.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Mérida experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Mérida. The most rain falls during the 31 days centered around May 11, with an average total accumulation of 7.1 inches.

The least rain falls around January 19, with an average total accumulation of 0.7 inches.

The length of the day in Mérida does not vary substantially over the course of the year, staying within 37 minutes of 12 hours throughout. In 2017, the shortest day is December 21, with 11 hours, 38 minutes of daylight; the longest day is June 21, with 12 hours, 38 minutes of daylight.

The earliest sunrise is at 6:24 AM on May 27, and the latest sunrise is 41 minutes later at 7:05 AM on January 29. The earliest sunset is at 6:21 PM on November 14, and the latest sunset is 47 minutes later at 7:07 PM on July 14.

Daylight saving time (DST) is not observed in Mérida during 2017.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Mérida experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 8.9 months, from February 23 to November 20, during which time the comfort level is muggy, oppressive, or miserable at least 4% of the time. The muggiest day of the year is May 22, with muggy conditions 13% of the time.

The least muggy day of the year is January 17, with muggy conditions 2% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Mérida experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.3 months, from May 7 to September 16, with average wind speeds of more than 2.3 miles per hour. The windiest day of the year is June 27, with an average hourly wind speed of 3.0 miles per hour.

The calmer time of year lasts for 7.7 months, from September 16 to May 7. The calmest day of the year is November 23, with an average hourly wind speed of 1.6 miles per hour.

The predominant average hourly wind direction in Mérida is from the east throughout the year.

Mérida is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.5 months, from January 6 to March 23, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest day of the year is February 3, with an average of 5.7 kWh.

The darker period of the year lasts for 1.7 months, from October 12 to December 2, with an average daily incident shortwave energy per square meter below 4.5 kWh. The darkest day of the year is November 8, with an average of 4.2 kWh.

For the purposes of this report, the geographical coordinates of Mérida are 8.590 deg latitude, -71.156 deg longitude, and 5,545 ft elevation.

The topography within 2 miles of Mérida contains extreme variations in elevation, with a maximum elevation change of 3,314 feet and an average elevation above sea level of 5,272 feet. Within 10 miles also contains extreme variations in elevation (13,550 feet). Within 50 miles also contains extreme variations in elevation (16,325 feet).

The area within 2 miles of Mérida is covered by grassland (51%), trees (34%), and shrubs (12%), within 10 miles by grassland (51%) and trees (44%), and within 50 miles by trees (43%) and grassland (30%).

This report illustrates the typical weather in Mérida, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Mérida.

For each station, the records are corrected for the elevation difference between that station and Mérida according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Mérida is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Mérida and a given station.

The stations contributing to this reconstruction are: Alberto Carnevalli Airport (98%, 1.0 kilometers, southwest) and Mene Grande (2.0%, 139 kilometers, north).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.